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Study the full Python automation breakdown →Question 553 of 2,015
Quick Answer
The answer is get_environment, which returns power supply, fan, and temperature status. This is correct because NAPALM’s getter methods are designed to retrieve specific operational data from network devices via a vendor-agnostic API; get_environment specifically queries hardware health metrics like chassis temperature, fan speed, and power supply redundancy, while other getters like get_facts or get_interfaces focus on device identity or interface counters. On the ENCOR 350-401 exam, this drag-and-drop task tests your ability to map NAPALM getters to their structured outputs, a common automation scenario where misidentifying get_environment as a facts or interface getter is a frequent trap. A strong memory tip is to think “environment = power, fan, temp” — the three critical hardware health indicators that keep a device running, distinct from the logical or neighbor data returned by other getters.
350-401 Python for Network Automation Practice Question
This 350-401 practice question tests your understanding of python for network automation. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Drag and drop each NAPALM getter on the left to its matching returned data on the right.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
get_facts: Device hostname, vendor, model, OS version, serial number
get_facts returns device facts like hostname and OS version, get_interfaces returns interface details, get_bgp_neighbors returns BGP neighbor information, get_lldp_neighbors returns LLDP neighbor data, and get_environment returns power and fan status.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Common exam traps
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
- OSPF neighbours must agree on key parameters.
- Router ID selection can affect neighbour relationships and LSDB output.
- OSPF cost influences the preferred path.
- A route can appear in OSPF information but not become the installed route.
TExam Day Tips
- Check area mismatch first when OSPF adjacency fails.
- Review passive interfaces when a network is advertised but no neighbour forms.
- Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
How this comes up in practice
A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.
What to study next
Got this wrong? Here's your next step.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 350-401 OSPF questions on adjacency and route selection.
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FAQ
Questions learners often ask
What does this 350-401 question test?
Python for Network Automation — This question tests Python for Network Automation — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: get_facts: Device hostname, vendor, model, OS version, serial number — get_facts returns device facts like hostname and OS version, get_interfaces returns interface details, get_bgp_neighbors returns BGP neighbor information, get_lldp_neighbors returns LLDP neighbor data, and get_environment returns power and fan status.
What should I do if I get this 350-401 question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 350-401 OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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Last reviewed: Jun 18, 2026
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